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# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI="5"
inherit eutils libtool
DESCRIPTION="Portable and efficient API to determine the call-chain of a program"
HOMEPAGE="https://savannah.nongnu.org/projects/libunwind"
SRC_URI="http://download.savannah.nongnu.org/releases/libunwind/${P}.tar.gz"
LICENSE="MIT"
SLOT="7"
KEYWORDS="amd64 arm hppa ia64 ~mips ppc ppc64 x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux"
IUSE="debug debug-frame libatomic lzma static-libs"
RESTRICT="test" #461958 -- re-enable tests with >1.1 again for retesting, this is here for #461394
# We just use the header from libatomic.
RDEPEND="lzma? ( app-arch/xz-utils )"
DEPEND="${RDEPEND}
libatomic? ( dev-libs/libatomic_ops )"
DOCS=( AUTHORS ChangeLog NEWS README TODO )
QA_DT_NEEDED_x86_fbsd="usr/lib/libunwind.so.7.0.0"
src_prepare() {
# These tests like to fail. bleh.
echo 'int main(){return 0;}' > tests/Gtest-dyn1.c
echo 'int main(){return 0;}' > tests/Ltest-dyn1.c
# Since we have tests disabled via RESTRICT, disable building in the subdir
# entirely. This worksaround some build errors too. #484846
sed -i -e '/^SUBDIRS/s:tests::' Makefile.in || die
sed -i -e '/LIBLZMA/s:-lzma:-llzma:' configure{.ac,} || die #444050
epatch "${FILESDIR}"/${P}-lzma.patch #444050
epatch "${FILESDIR}"/${P}-fix-CVE-2015-3239.patch #585830
elibtoolize
}
src_configure() {
# https://savannah.nongnu.org/bugs/index.php?34324
# --enable-cxx-exceptions: always enable it, headers provide the interface
# and on some archs it is disabled by default causing a mismatch between the
# API and the ABI, bug #418253
# conservative-checks: validate memory addresses before use; as of 1.0.1,
# only x86_64 supports this, yet may be useful for debugging, couple it with
# debug useflag.
ac_cv_header_atomic_ops_h=$(usex libatomic) \
econf \
--enable-cxx-exceptions \
$(use_enable debug-frame) \
$(use_enable lzma minidebuginfo) \
$(use_enable static-libs static) \
$(use_enable debug conservative_checks) \
$(use_enable debug)
}
src_test() {
# Explicitly allow parallel build of tests.
# Sandbox causes some tests to freak out.
SANDBOX_ON=0 emake check
}
src_install() {
default
# libunwind-ptrace.a (and libunwind-ptrace.h) is separate API and without
# shared library, so we keep it in any case
use static-libs || find "${ED}"usr '(' -name 'libunwind-generic.a' -o -name 'libunwind*.la' ')' -delete
}
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